Process of solidifying and toughening oils.



UNITED STATES JOSEPH BARTON SCAMMELL AND ERNEST A. MUSKETT, OF LONDON,

. ENGLAND. Y

PROCESS OF SOLIDIFYING AND TOUGHENING OILS.

SPECIFICATION forming part of Letters Patent NO. 724,618, dated April 7,1903.

Application filed November 4,1901.

To all whom it may concern:

Be it known that we, JOSEPH BAnToN'SoAM- MELL and Ennnsr ALFRED MUSKETT,subjects of the King of England, residing at London, England, haveinvented a certain new and useful Improved Process of Solidifying andToughening Oils, (for which We have made application for LettersPatentin Great Britain, No. 21,229, dated October 23, 1901,) of whichthe following is a specification.

The present invention relates to a process for the treatment of oils,its object being to solidify and toughen oils and render them suitablefor use as substitutes-for india-rubber, gutta-percha, or the like, orfor admixture with these substances to reduce the cost of theirmanufacture.

In carrying out this invention any suitable animal or vegetable oil,such as castor-oil, is in the first place mixed witha certain proportionof some fibrous material, such as cotton, rhea, or any other form ofcellulose. To this mixture is slowly added a solution of chlorid ofsulfur in bisulfid of carbon or other solvent, the whole beingvigorously agitated, and in a short time the mixture is found tosolidify into a tough and perfectly homogeneous mass which can be usedafter suitable treatment-such as drying, grinding, or the like-in placeof or mixed with indiarubber, guttapercha, or other similar materials.

In some cases it is found advantageous to reduce the cellulose beforeadding it to the oil by applying great heat to the cellulose in a closedvessel, thereby driving oi the volatile constituents and converting itinto a gummy mass. The'cellulose in this form is then added to the oil.

In some cases it is also found desirable to add to the mixture describedabove a small percentage of some form of drier, such as oxids ofcalcium, magnesium, barium, &c.

The following proportions of the ingredients of the solidified oilaccording to this invention have been found to be suitable: Eight parts,by weight, of castor-oil; one part, by weight, of oxid of magnesia;onesixteenth part, by weight, of cotton fiber (or Serial No. 81,104. (Nospecimens.)

cellulose reduced by 'heat;) eight parts, by weight, of carbon bisulfid;one part, by weight, of chlorid of sulfur.

The solution of chlorid of sulfur in carbon bisulfid should be addedslowly while the mass is thoroughly mixed. The proportion of cottonfiber or reduced cellulose mentioned above may be increased in somecases even up to two parts, by weight, these proportions depending onthe special qualities required in the finished articlesuch as color,softness, &c.some amount of experiment being necessary to suit themethod of manufacture to the special purpose for which the resultingproduct is required.

What we claim as our invention, and desire to secure by Letters Patent,is-

1. The process for solidifying and toughening oils which consists inadding to the oil a certain proportion of fibrous material, andthereafter stirring the mixture together with a solution of chlorid ofsulfur until the fiber is completely dissolved whereby a tough andhomogeneous mass is formed.

2. The process for solidifying and toughening oils which consists inadding to the oil a certain proportion of cellulose and thereafterstirring the mixture together with a solution of chlorid of sulfur untilthe fiber is completely dissolved wherebya tough and homogeneous mass isformed.

3. The process for solidifying and toughening oils which consists inadding to the oil a certain proportion of cellulose which has beenreduced to a gummy mass by distillation in a closed vessel andthereafter stirring the mixture together with a solution of chlorid ofsulfur whereby a (tough and homogeneous mass is formed.

i. The process for solidifying and toughening oils which consists inadding to the oil a certain proportion of cellulose which has beenreduced to a gummy mass by distillation in a closed vessel, addingthereto a small percentage of someform of drier and thereafter stirringthe mixture together with a solution of chlorid of sulfur whereby atough and homogeneous mass is formed.

5. As a new article of manufacture oil which has been solidified andtoughened by adding thereto a certain proportion of some fibrousmaterial and thereafter agitating the mixture with a solution of chloridof sulfur until the fiber is completely dissolved, whereby a tough andhomogeneous mass is formed.

6. Asanewarticle'ofmanufactureoilwhich has been solidified and toughenedby adding thereto a certain proportion of cellulose and thereafterstirring the mixture together with a solution of chlorid of sulfur untilthe fiber is completely dissolved wherebya tough and homogeneous mass isformed.

7. As a new article of manufacture oil which has been solidified andtoughened by adding thereto a certain proportion of cellulose which hasbeen reduced to a gummy mass by distillation in a closed vessel andthereafter stirring the mixture together with a solution of chlorid ofsulfur wherebya tough and homogeneous mass is formed.

8. As a new article of manufacture oil which has been solidified andtoughened by adding thereto a certain proportion of cellulose which hasbeen reduced to a gummy mass by distillation in a closed vessel, addingthereto a small percentage of some form of drier, and thereafterstirring the mixture together with a solution of chlorid of sulfurwherebya tough and homogeneous mass is formed.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

JOSEPH BARTON SOAMMELL. ERNEST A. MUSKETT. Witnesses:

FRED C. DUNN, WALTER J. SKERTEN.

